Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7712319 | Refrigerant charge adequacy gauge | Robert J. Braun, Pengju Kang, Sivakumar Gopalnarayanan, Timothy P. Galante, Dong Luo +1 more | 2010-05-11 |
| 7707842 | Defrost mode for HVAC heat pump systems | Yu H. Chen, Young Kyu Park, Tobias H. Sienel | 2010-05-04 |
| 7490481 | Vapor compression system startup method | Bryan A. Eisenhower | 2009-02-17 |
| 7389648 | Pressure regulation in a transcritical refrigerant cycle | Tobias H. Sienel, Bryan A. Eisenhower, Yu H. Chen, Young Kyu Park | 2008-06-24 |
| 7386985 | Detection of refrigerant charge adequacy based on multiple temperature measurements | Robert J. Braun, Sivakumar Gopalnarayanan, Don A. Schuster, Sathish R. Das | 2008-06-17 |
| 7228692 | Defrost mode for HVAC heat pump systems | Yu H. Chen, Young Kyu Park, Tobias H. Sienel | 2007-06-12 |
| 7225629 | Energy-efficient heat pump water heater | Tobias H. Sienel, Bryan A. Eisenhower | 2007-06-05 |
| 7127905 | Vapor compression system startup method | Bryan A. Eisenhower | 2006-10-31 |
| 7028494 | Defrosting methodology for heat pump water heating system | Nicolas Pondicq-Cassou, Jean-Philippe Goux, Yu H. Chen, Tobias H. Sienel, Sylvain Douzet | 2006-04-18 |
| 7010925 | Method of controlling a carbon dioxide heat pump water heating system | Tobias H. Sienel, Yu H. Chen, Bryan A. Eisenhower, Young Kyu Park, Lili Zhang +2 more | 2006-03-14 |
| 6993921 | Multi-variable control of refrigerant systems | Bryan A. Eisenhower | 2006-02-07 |